[4.0][RTL][Atum] Add RTL Support

[ciar4n]

Pull Request for Issue # .

Summary of Changes

Broad RTL styling for the Atum backend template.

• General RTL changes
• Moved sidebar to right
• Flipped main navigation
• Flipped status bar
• Flipped quick icons
• Removed directional bootstrap classes
• Removed floats from table
• Refactored dashboard modules to allow RTL

Testing Instructions

Apply patch and log in to admin with RTL language (eg. Arabic).

Edit: Can also be tested without having to install an RTL language. See.. #16593 (comment)

Expected result

Documentation Changes Required

Screenshots

[brianteeman]

For people testing you do not need to install a new language. You may find it easier to test in your own language and you can do this easily

For example to change en-GB to RTL you need to edit the administrator/languages/en-GB/en-GB.xml file and change

  <rtl>0</rtl>

to

  <rtl>1</rtl>

[ghost]

I have tested this item 🔴 unsuccessfully on 3514000

Not sure if:

or

is now to be tested.

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/16593.}

[ciar4n]

Thank you @franz-wohlkoenig. Yes such issues can be reported here and I will amend them the next chance I get.

[ciar4n]

@franz-wohlkoenig Alerts and labels now fixed

[ghost]

@ciar4n thanks, will test more this Weekend.

[ghost]

@ciar4n:
This is also in LTR:

missing Space:

[ciar4n]

@franz-wohlkoenig Btn-group (missing space) has been fixed.

Issues also present in LTR I will leave for a separate PR. Maybe just create a issue so we don't forget.

[ghost]

Fix looks fine.

#16620

[ghost]

Text align right:

[ghost]

Point at Beginning of Sentence?

Same Tab, same Question:

[ghost]

[ciar4n]

Text align right:

Fixed

Point at Beginning of Sentence?

If I am not mistaken this is correct RTL behaviour

The media manager can be ignored for now. I will do the RTL for that separately

[brianteeman]

Point at Beginning of Sentence?
If I am not mistaken this is correct RTL behaviour

RTL gets very funky when you have LTR text in it - especially punctuation.. Dont worry about that for now it should be fine when using an RTL language and font

[wilsonge]

I'm going to merge this as a starting point before it starts accumulating conflicts. I'm sure there's going to be a lot more to do though :)